:root {
    --bg-dark: #0e0e10;
    --bg-card: #161618;
    --bg-darker: #080809;
    --accent: #ffc107;
    --accent-hover: #e0ac00;
    --text-main: #ffffff;
    --text-dim: #a0a0a0;
    --border: rgba(255, 255, 255, 0.1);
    --section-padding: 100px 20px;
    --container-width: 1200px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3 { font-weight: 800; text-transform: uppercase; letter-spacing: -0.02em; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.text-accent { color: var(--accent); }
.bg-darker { background-color: var(--bg-darker); }

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
    background: rgba(14, 14, 16, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

nav { display: flex; justify-content: space-between; align-items: center; }

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(to right, #fff, var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.nav-links { display: flex; gap: 30px; }
.nav-links a:hover { color: var(--accent); }

.btn-cta {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--accent);
    color: #000;
    font-weight: 700;
    border-radius: 5px;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-cta:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 193, 7, 0.2);
}

.hero {
    padding: 180px 0 100px;
    text-align: center;
    position: relative;
}

.hero h1 {
    font-size: clamp(2rem, 6vw, 4.5rem);
    line-height: 1.1;
    margin-bottom: 20px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.video-container {
    max-width: 1000px;
    margin: 60px auto 0;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 16/9;
    background: var(--bg-card);
    border: 1px solid var(--border);
    position: relative;
    cursor: pointer;
    box-shadow: 0 30px 60px rgba(0,0,0,0.5);
}

.video-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
}

.play-btn {
    width: 80px;
    height: 80px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.play-btn svg {
    width: 30px;
    height: 30px;
    fill: #000;
    margin-left: 5px;
}

.video-container:hover .play-btn { transform: scale(1.1); }

section { padding: var(--section-padding); }

.section-title { text-align: center; margin-bottom: 60px; }
.section-title h2 { font-size: 3rem; margin-bottom: 20px; }
.section-title p { color: var(--text-dim); font-size: 1.1rem; }

/* Split Sections (Mi Historia & Experto) */
.split-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.split-section.reverse .split-content {
    flex-direction: row-reverse;
}

.split-text {
    flex: 1;
}

.split-text h2 {
    font-size: 3rem;
    margin-bottom: 30px;
    line-height: 1.1;
}

.split-text p {
    font-size: 1.1rem;
    color: var(--text-dim);
    margin-bottom: 20px;
}

.split-image {
    flex: 1;
}

.img-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.sepia-effect img {
    filter: sepia(0.6) contrast(1.1) brightness(0.9);
}

.signature {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.signature .name {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 0;
}

.signature .role {
    color: var(--accent);
    font-size: 0.9rem;
    text-transform: uppercase;
    font-weight: 600;
}

.expert-badges {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.expert-badges li {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.1rem;
    font-weight: 600;
    background: rgba(255,193,7,0.05);
    padding: 15px 20px;
    border-radius: 10px;
    border-left: 3px solid var(--accent);
}

.expert-badges i {
    color: var(--accent);
}

/* Before/After Slider */
.comparison-slider {
    position: relative;
    width: 100%;
    max-width: 800px;
    height: 500px;
    margin: 0 auto;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 30px 60px rgba(0,0,0,0.5);
}

.comparison-slider img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    position: absolute;
    top: 0;
    left: 0;
}

.img-after {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.img-before {
    position: absolute;
    width: 50%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
    z-index: 2;
}

.comparison-slider .label {
    position: absolute;
    bottom: 20px;
    background: rgba(0,0,0,0.7);
    color: #fff;
    padding: 5px 15px;
    border-radius: 5px;
    font-weight: 700;
    font-size: 0.9rem;
    z-index: 3;
}

.img-after .label { right: 20px; }
.img-before .label { left: 20px; }

.slider-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    background: var(--accent);
    z-index: 3;
    transform: translateX(-50%);
    pointer-events: none;
}

.slider-handle i {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--accent);
    color: #000;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 15px rgba(0,0,0,0.5);
}

.comparison-slider input[type="range"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 4;
    opacity: 0;
    cursor: ew-resize;
}

/* Community Visual */
.community-visual {
    max-width: 1000px;
    margin: 0 auto;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 30px 60px rgba(0,0,0,0.4);
}

.zoom-effect {
    transition: transform 10s ease;
}
.zoom-effect:hover {
    transform: scale(1.05);
}

/* Claims Banner */
.claims-banner {
    background: var(--accent);
    color: #000;
    padding: 20px 0;
    overflow: hidden;
    white-space: nowrap;
    display: flex;
    align-items: center;
}
.claims-track {
    display: flex;
    gap: 50px;
    animation: scroll 20s linear infinite;
}
.claim-item {
    font-size: 1.2rem;
    font-weight: 800;
    text-transform: uppercase;
}
@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Form Styles */
.form-section {
    background: var(--bg-card);
    max-width: 800px;
    margin: 0 auto;
    border-radius: 20px;
    padding: 60px;
    border: 1px solid var(--border);
}

.form-subtitle {
    color: var(--text-dim);
    margin-bottom: 30px;
}

.contact-form { display: grid; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-weight: 600; font-size: 0.9rem; color: var(--text-dim); }
.form-group input, .form-group textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    padding: 15px;
    border-radius: 8px;
    color: #fff;
    font-family: inherit;
    transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent);
    outline: none;
    background: rgba(255, 255, 255, 0.08);
}

/* Multi-step Form Styles */
.multi-step-container { position: relative; overflow: hidden; }
#form-header { margin-bottom: 40px; text-align: center; }

.progress-container {
    margin: 30px auto;
    max-width: 400px;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    position: relative;
}

.progress-bar {
    height: 100%;
    background: var(--accent);
    width: 33.33%;
    border-radius: 10px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-steps {
    display: flex;
    justify-content: space-between;
    position: absolute;
    top: -12px;
    left: 0;
    width: 100%;
}

.step-indicator {
    width: 30px;
    height: 30px;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.8rem; font-weight: 700;
    transition: var(--transition);
}

.step-indicator.active {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 15px rgba(255, 193, 7, 0.3);
}

.form-step { display: none; animation: slideIn 0.5s ease-out forwards; }
.form-step.active { display: block; }
@keyframes slideIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

.checkbox-grid, .radio-group { display: grid; gap: 15px; margin-top: 10px; }
.checkbox-item, .radio-item {
    display: flex; align-items: center; gap: 12px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}
.checkbox-item:hover, .radio-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 193, 7, 0.5);
}
.checkbox-item input, .radio-item input { width: 18px; height: 18px; accent-color: var(--accent); }
.text-danger { color: #ff4d4d; border-color: rgba(255, 77, 77, 0.2); }

.step-btns { display: flex; justify-content: space-between; gap: 20px; margin-top: 40px; }
.step-btns button { flex: 1; }

.step-intro {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid var(--border);
}

footer { padding: 60px 0; text-align: center; border-top: 1px solid var(--border); color: var(--text-dim); }
.social-links { display: flex; justify-content: center; gap: 20px; margin-bottom: 20px; }

/* Reveal Effects */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.reveal.active { opacity: 1; transform: translateY(0); }

/* Responsiveness */
@media (max-width: 768px) {
    .split-content { flex-direction: column; text-align: center; }
    .split-section.reverse .split-content { flex-direction: column; }
    .hero h1 { font-size: 2.5rem; }
    .section-title h2 { font-size: 2.2rem; }
    .split-text h2 { font-size: 2.2rem; }
    .nav-links { display: none; }
    .form-section { padding: 30px 20px; }
    .comparison-slider { height: 350px; }
    .expert-badges { align-items: center; }
}